<template>
  <div class="login">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      label-position="left"
      label-width="0px"
      class="login-form"
    >
      <h3 class="title">数据环境管理平台</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          placeholder="账号"
        >
          <svg-icon
            slot="prefix"
            icon-class="user"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          placeholder="密码"
          autocomplete="current-password"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="password"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="validCode"
            class="el-input__icon input-icon"
          />
        </el-input>
        <div class="login-code">
          <img
            :src="codeUrl"
            @click="getCode"
          >
        </div>
      </el-form-item>
      <el-checkbox
        v-model="loginForm.rememberMe"
        style="margin: 0 0 25px 0"
      >
        记住我
      </el-checkbox>
      <el-form-item>
        <el-button
          :loading="loading"
          class="login_btn"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div
      v-if="$store.state.settings.showFooter"
      id="el-login-footer"
    >
      <span v-html="$store.state.settings.footerTxt" />
      <span> ⋅ </span>
      <a
        href="http://www.beian.miit.gov.cn"
        target="_blank"
      >{{
        $store.state.settings.caseNumber
      }}</a>
    </div>
  </div>
</template>

<script>
import { encrypt } from '@/utils/rsaEncrypt'
import Config from '@/settings'
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
export default {
  name: 'Login',
  data() {
    return {
      codeUrl: '',
      cookiePass: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', message: '用户名不能为空' }
        ],
        password: [
          { required: true, trigger: 'blur', message: '密码不能为空' }
        ],
        code: [
          { required: true, trigger: 'change', message: '验证码不能为空' }
        ]
      },
      loading: false,
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.getCode()
    this.getCookie()
  },
  methods: {
    getCode() {
      getCodeImg().then((res) => {
        this.codeUrl = res.img
        this.loginForm.uuid = res.uuid
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      let password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? '' : password
      password = password === undefined ? this.loginForm.password : password
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ''
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        const user = {
          username: this.loginForm.username,
          password: this.loginForm.password,
          rememberMe: this.loginForm.rememberMe,
          code: this.loginForm.code,
          uuid: this.loginForm.uuid
        }
        if (user.password !== this.cookiePass) {
          user.password = encrypt(user.password)
        }
        if (valid) {
          this.loading = true
          const redirect = Cookies.get('username') === user.username
          // if (user.rememberMe) {
          Cookies.set('username', user.username, {
            expires: Config.passCookieExpires
          })
          Cookies.set('password', user.password, {
            expires: Config.passCookieExpires
          })
          Cookies.set('rememberMe', user.rememberMe, {
            expires: Config.passCookieExpires
          })
          // } else {
          //   Cookies.remove('username')
          //   Cookies.remove('password')
          //   Cookies.remove('rememberMe')
          // }
          Cookies.set('role', '')
          this.$store
            .dispatch('Login', user)
            .then((res) => {
              this.loading = false
              this.$router.push({ path: (redirect && this.redirect) ? this.redirect : '/'})
            })
            .catch(() => {
              this.loading = false
              this.getCode()
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  // display: flex;
  // justify-content: center;
  position: relative;
  align-items: center;
  height: 100%;
  // background-image:url(https://api.isoyu.com/bing_images.php);
  background-image: url(../assets/images/login10.png);
  background-size: cover;
  background-position: center center;
}

.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: black;
  font-weight: 100;
  font-size: 20px;
  font-family: "KaiTi";
}

.login-form {
  position: absolute;
  top: 25%;
  right: 5%;
  border-radius: 6px;
  // background: #ffffff;
  background-color: white;
  width: 358px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login_btn {
  background-color: rgba(77, 126, 190, 0.8);
  border: 1px solid rgb(190, 225, 255);
  // padding: 6px;
  width: 70%;
  height: 40px;
  border-radius: 30px;
  font-size: 20px;
  font-family: "KaiTi";
  color: white;
  font-weight: 8;
  margin: 6% 15%;
}

.login_btn:hover {
  box-shadow: 2px 2px 15px 2px rgb(190, 225, 255);
  background-color: rgba(77, 126, 190, 0.6);
  /* 选择动画 */
  animation: login_mation 0.5s;
  color: white;
}

.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
</style>
